Wrath- I agree with you on all your points. I love to just clean up shop on teams and do tons of damage. But, I've found when I do this I tend to get focused on more than I prefer. The summoner spells and lack of major nuking all team fight is more a testament to my play style (very close to the vest and avoid dieing at all costs) than her abilities to do serious damage. Ghost and Flash are both in the useful summoner spells.

Orianna is a very good supporter. Its much better for supporting than nuking. I still prefer Clairvoyance

^of course, she is a caster... x_x

@Raven, Ori is the 2nd most damaging nuke right behind Veigar, please don't play her support when she has so much other potential.

also at author, in the role section you say that she is good for cleaning up people low HP.

bro, she gets people to low HP AND cleans them up.

With enough AP late game your Q+W+Q combo will kill most carries, and your ult during teamfights will disrupt everything and deal 50%+ of everyone's HP.

She is the cleaner spray and the mop, not just the mop.

Also, since you should not really be support much mid-late game, you want pretty offensive summoner spells...

also, besides your very short speed up from W you don't have any natural escape mechanisms...

taking these in mind, I would recommend flash and ghost.

Played a couple games and just switched my masteries altogether. Utility helps a lot with Orianna.

I wouldn't mind, but your passive can't crit (since it's magic damage) and you have no items with Crit % (which you shouldn't).

;)

Somehow my old post just got deleted. But in response I can agree with you that it is a good idea, and will add it to my list of useful summoner spells.

But using your ball to discover the brushes need mana. And as you said Orianna is very mana dependant. i think no1 wants you to get low on mana because you check brushes.
I still prefer Clairvoyance

Xenasis- the 10% crit is a work in progress, I find it to help make her passive actually useful, but can see and agree with people who disagree with it. And I do need to that in about the skilling, I find the combo to be useful and therefor neither is stronger than the other. I will add in that section along with other material in a day or two

Why do you have a +10% crit damage mastery?

Clarity and Heal are terrible...

Why is your skilling all over the place?

Lot of good stuff and a good bit of not so good. First the bad stuff...NO OFFENCE TREE TO 21! to 9 yes but you gain so much more in utility with mana regen heath regen and a better clarity. I do like they way you set up the runes but thats prety caster standared. One thing I would like to point out is per lvl cdr mixed with the flat out ones keep you from being to heavy on one side. The trade off happens at lvl 13 so pick up what you would like as far as toughs go. Just a thought. One more thing is that you sell your philosophers stone instead of building into a Shurelya's Reverie or an Eleisa's Miracle again situational but something to consider.
Now that thats over, the good. Your item build is exceptional of a bit rigid. and you give good overall commentary as far as how she is to be used while allowing for game specific decisions. Great build to pick up and run with. Tweaked a few things for my play style but that is just me +1

Very good guide.
I prefer Clairvoyance, and Clarity for summoner spells, since you are a supporter.
I love your writestilye, so i enjoyed reading it.
I give +1 ;)